Exactly the reason you can't use the DTFT in finance. Look up Ehlers' implementation of the autocorrelation periodogram and MESA algorithms. From ph1l's post, I thought the HHT was noncausal and thus of limited use in trading. I will try to read the article when I can get some time to digest it properly.
Don't understand the math but the concept of extracting signals out of nonlinear and non stationary system is very interesting since stock price is generally nonlinear and non stationary. As a side note, instead of using fancy math, we trader who are non mathematical used various moving averages to accomplish the same. These plots looks like: (a) = 200 dma, (b) = 50 dma, (c) = 10 dma and (d) = 5 dma, for example.
I found what looks like one of the original papers on empirical mode decomposition with the Hilbert transform.
In the late ‘90s I once saw an advert looking for proprietary traders in Chicago. Very top tier firm. The last sentence read:” Practitioners of Elliott Wave and Gann need NOT apply”. Absolutely true story.
PTJ used to supply his PMs with Prechter's EWT or whatever it's called. The monthly paperback. This was in the late 90s. It was 4-5 figs a year back in the day... he's asking $29/month now. What a savings.
Thank you for the link. Another late night reading assignment for me. It is amazing what you folks are able to dig out. I will never be able to find articles like this.
It really means what worked in the 90s are no longer working today. In another couple of years, it will be free and he gets his income from ads. Sir, you get what you paid for.
there is no password. just click on the enable editing. http://www.marketcentral.ca/expectancy/traderecord.xlsx
OK thank you. For whatever reason, the first time I tried it wouldn't work after enabling, but it did this time. Now I must learn how to use it!